Community/Discussion/General/Virtual COM Port, Making USB look like COM/List of Posts
 
Forum Topic - Virtual COM Port, Making USB look like COM: (2 Items)
   
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Peter Fischer
12/14/2008 1:43 PM
post18578
Virtual COM Port, Making USB look like COM   
Hello.

This is the task i have:
The program connects to a COM-Port to send/receive data. The that should be used is connected to the USB. I need a 
driver/program that creates a virtual port makes the USB look like a COM-Port to the program and that converts the data 
in both directions.

I dont want to use additional hardware. Is the devc-serusb the right thing??

Thank you for your help.
Dennis Kellly(deleted)
12/17/2008 4:21 PM
post18889
Re: Virtual COM Port, Making USB look like COM   
>>>I dont want to use additional hardware. Is the devc-serusb the right thing??

devc-serusb is expecting a prolific chip (PL-2303) complete with registers and a hw queue sitting between the usb driver
 and the serial connection.  I doubt you would find much that directly applies to your problem.

I would think you would have to program the usb chip directly - skipping any "normal" usb driver.  Setting the transmit/
receive clocks to match the baud clock would be the first issue.

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